Sash fastener



Sept. 10, 1929. 1 HOLTZMAN 1,727,977

sAsHFAsTENERl l Filed sept. 50, 1926 ATTORNEY Patented Sept. 10, 1929.

UNITED STATES JOHN HOLTZMAN, OF NEW YORK, N. Y.

SASH FASTENER.

Application led September 30, 1926. Serial No. 138,815.

This invention relates to a sash fastener and is an improvement of the invention for sash fastener, described and claimed in my Letters Patent No. 1,589,804 dated June 22nd 1926. l

The present invention has for its. ob]ect the production of a fastener that 1s supported on the lower sash of a window and is adapted to clamp the upper sash thereof.

1o The essential element of the fastener is an adjustable screw, which is located with its longitudinal axis inclined to a horizontal plane, and which carries a clamping block adapted to bear against the upperl sash of the window. The inclined position of the screw causes the clamping block to bear with increasing pressure, if it is attempted to lower the upper sash, when said clamping block bears thereon. To lower the upper 2o sash the screw is turned, to cause the block to be removed out of the path of said upper sash.

In the accompanying drawings Fig. 1 represents a front view of an exempliiica- 25 tion of the sash fastener in position with a pair of sashes of a window; Fig. 2 shows a section of Fig. 1 on the broken line 2, 2;

Fig. 3 is a top plan view of the sash fastener.

Referring to Figs. 1 to 3, a window is indicated with an Lipper sash, having thebottom rail and vertical members 21, and a lower sash with the top rail and the vertical members 26. The sash fastener in this instance comprises a hinge with the members 28 and 29 in swinging relation to each other` and the hinge pin 30. The member 29 is fastened to the rail 25, by means of the screws 31.

A supporting block or bracket 34 has 40 formed at its lower end the flanges 35, and rivets 36 clamp the iianges 35 to the member 28 of the hinge. A threaded opening 39 inclined to the plane of the flanges is formed in the supporting block 34. A clamping screw is in threaded engagement with the opening 39, and has formed at one end the eye 41, and to the other end is fastened the cup 42, in which is `secured the tapered plug 43 of pliable material, prefer-` ably rubber. ,'50 In the position of the parts indicated in y the drawings, the outer face of the plug 43 bears against one of the vertical members 21 of the upper sash, and if it is attempted` to lower the upper sash, the said plug 43 55 will bear against said member 21 with increasing pressure. The screws'l are at all times below the member 28 of the hinge, and can not be tampered with from the outside.` If it is desired to lower thev sash the screw 40 is turned in the opening 39, to disengage the plug 43 from .the member 21. The coaction of the tapered plug 43,' when it is attempted to lower the upper sash having the vertical members 21, results in a cam `action between said plug 43 and one ofsaid vertical members 21. The screw 40 must be maintained in the same inclined position, to prevent the plug end thereof swinging'up, when it is turned, to bear said plug 70 against one of kthe vertical members 21, otherwise the plug would ride on the member 21 and not tightly bear against it to clamp the sash in place. y y i Various modifications may be made in the invention and the present exemplification is to be taken as illustrative and not limitative thereof. y

Having described my invention what I desire to secure by Letters Patent and claim is: S0

.1. rIn a sash fastener the combination ofv a hinge comprising a pair of flat members in swinging relation to each other about a common axis at the edge of said members, one of said members fastened to the upper rail yof the lower sash of a window, a supporting block with its lower face bearing on the other member of the hinge and rfastened. thereto, said supporting block having a threaded opening inclined to its lower face, a clamping screw in engagement with said opening,

means at one end of the screw to turn it and an element connected to the other'end of the screw, adapted to bear frictionally against the upper sash of the window.V i

2. In a sash fastener the combination of a conventional hinge comprising a pair of similar members, one of said members fastened to the upper rail of the lower sash of a window, a supporting block with its lower end fastened to the other member of the hinge, said supporting block having a threaded opening inclined to its lower face, a clamping screw in engagement with said opening, a cup fastened to the upper end of the screw and a resilient plug tightly secured in said cup for frictionally engaging the surface only of a sash.

3. In a sash fastener for securing the upper and lowersashes of a double window the combination 'of screw carrying means in hinged relation to the lower sash, said means including a member having an upwardly in- `clined threaded opening, and a flat perforated member terminating in a hollow cylinder, to which cylinder the iirst mentioned member is pivoted, a screw in engagement with said opening and a resllient plug car- Y riedby said screw at one end thereof adapted to bear frictionally against the surface of the upper sash to lock it in position by the compression of said plug on attempted movement of either sash toward the open position thereof.

4. In a sash fastener the combination of a hinge, including a pair of flat members terminating in aligned cylinders, a pin passing through said cylinders `for pivotally connectf ing said members together, one of the members of the hinge fastened to and entirely above the horizontal surface of the lower sash of a window, a screw inclined in the operative position thereof in threaded relaber to the uppermost surface 0f a lower window sash, a second member mounted for rotation about the said first member, and a screw adapted to frictionally engage an upper window sash, adjustable relatively to saidy JOI-IN HOLTZMAN.

tion to the other member of the hinge and a plug vof resilient material at one end of the vscrew adapted to bear frictionally against surface of ythe. other sash. y

5. In a sash fastener, a substantially flat member perforated for the reception of at-k taching screws, said member being adapted to lie` horizontally on therupper surface of a lower window sash, and terminating in a pinreceiving portion, a pin in said portion', and a screw adj ustably mounted for rotation in-a vertical plane about the axis of said pin and adapted 'to engage `the surface of an upper window sash frictionally in an inclined p0- sition, whereby relative movement of the sashes vtoward open `position thereof tends to force said screw against said sash and to increase the pressure of the screw on said upper sash.

6. In a sash fastener, a .member formed .of

a single piece of sheet material, and having f holes therein through which screws may be vertically inserted for fastening the mem- 

